[MichaelVS]

Dear CFD experts,

I urgently need your kind help!

The following udf returns the error "ACCESS_VIOLATION"

#include "udf.h"
#include "sg_mphase.h"

DEFINE_EXECUTE_AT_END(calculate_value)
{
/************* DECLARATION OF VARIABLES *************/
Domain *d = Get_Domain(1);
Thread *t;
Thread **pt; /* pt0 - air, pt1 - ls */
cell_t c;
real gradx, grady;
/************* CODE *************/

mp_thread_loop_c (t,d,pt)
{
begin_c_loop(c,t)
{
gradx = C_VOF_G (c, pt[1])[0];
grady = C_VOF_G (c, pt[1])[1];
C_UDMI(c, t, 0) = gradx;
C_UDMI(c, t, 1) = grady;
}
end_c_loop(c,t)
}
}

The temporary solver memory (yes) - enabled.

Why does the problem still appear?

Thank you in advance!